(4)Goodwill and Intangible Assets

Goodwill and Non-amortizing Intangible Assets

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Impairments

During the third quarter of 2025, management determined it was more likely than not that the fair value of GCI Liberty and certain of its indefinite-lived intangibles assets were less than their carrying values based on the trading price of its common stock and updated long-term forecasts for the business. With the assistance of a third-party specialist, the fair value of the cable certificates, other indefinite-lived intangible assets, and the overall fair value of the Company were determined using discounted cash flow models that incorporated projections of future operating performance (income approach) (Level 3). Impairments in the amounts of $401 million for cable certificates, $16 million for other indefinite-lived intangible assets, and $108 million for goodwill were recorded during the third quarter of 2025, in the Impairment of goodwill and intangible assets line item in the condensed consolidated statements of operations.

Based on these assessments performed during the third quarter of 2025 and the resulting impairment losses recorded, the estimated fair value of the cable certificates, other indefinite-lived intangible assets, and the overall fair value of the Company did not significantly exceed its carrying value as of September 30, 2025. As of September 30, 2025, the Company had accumulated goodwill impairment losses of $108 million.

Intangible Assets Subject to Amortization, net

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Intangible assets are being amortized generally on an accelerated basis as reflected in amortization expense and in the future amortization table below.

Amortization expense for intangible assets with finite useful lives was $14 million and $15 million for the three months ended September 30, 2025 and 2024, respectively, and $43 million and $45 million for the nine months ended September 30, 2025 and 2024, respectively. Amortization expense for amortizable intangible assets for each of the five succeeding fiscal years is estimated to be (amounts in millions):

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(4)Goodwill and Intangible Assets

Goodwill and Indefinite Lived Assets

There have been no changes in the carrying amount of goodwill for the years ended December 31, 2024 and 2023.

As presented in the accompanying combined balance sheets, cable certificates are the majority of the other significant indefinite lived intangible assets.

Intangible Assets Subject to Amortization, net

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Intangible assets are being amortized generally on an accelerated basis as reflected in amortization expense and in the future amortization table below.

Amortization expense for intangible assets with finite useful lives was $60 million and $64 million for the years ended December 31, 2024 and 2023, respectively. Amortization expense for amortizable intangible assets for each of the five succeeding fiscal years is estimated to be (amounts in millions):

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Impairments

The Company recorded no impairments during the years ended December 31, 2024 and 2023.